# Does PRP work? What care made from your blood may offer *Does PRP Work? | PRP Clinic Chandler* > Does PRP work? A PRP clinic Chandler guide to how results differ with the sore body part and the PRP used. One morning, your knee may loosen after a few careful steps. The next day, it may ache through breakfast and a short errand. Day-to-day soreness can make a new treatment seem helpful or useless too early. Clinicians call the treatment platelet-rich plasma, or PRP; a machine spins your blood, and one layer is saved. That layer holds extra platelets, the little blood pieces that join together where skin is cut and start early repair. Does PRP work? The fair answer depends on the body part and the blood mixture used. ## What to take from the mixed results Research on worn knees doesn't give one answer. In some studies, people reported less aching and could move more easily after PRP. One large study gave PRP to some people and a salt-water shot to the rest. After a year, neither set of people was clearly doing better. In that study, PRP didn't add a clear benefit. Results from one tendon don't settle care for every tendon. An elbow result can't answer a shoulder or ankle question. Relief happens for some people and not for others, so your own result can't be known beforehand. ## What to match to your own soreness First, identify the joint or tendon causing the soreness. Then learn how much wear or injury appeared during the exam. Useful research needs to cover your body part and a problem much like yours. Your daily tasks and earlier care also affect whether it fits. During a QC Kinetix visit, the clinician may explain PRP as regenerative care, meaning the treatment material comes from you. The clinician needs to connect the choice with your exam and discuss other suitable care. Matching the body part isn't enough; the type and amount of damage also matter. ## What to decide before paying for PRP Pick one daily task that easier movement would return to you. That might mean walking farther or using your arm with less aching. Ask how and when the clinic would measure that task. When a clinic mentions research, request a short written account. Ask how people given PRP felt and moved afterward, then ask how the other group did. The difference between those groups shows whether PRP added useful relief. Because results aren't certain, cost belongs beside your exam, daily goal, and the closest useful research. ## Sources 1. In the RESTORE trial - the largest placebo-controlled PRP trial in knee osteoarthritis - 288 adults aged 50+ with symptomatic Kellgren-Lawrence grade 2-3 medial knee OA received three weekly intra-articular injections of leukocyte-poor PRP from a commercial system or saline placebo. At 12 months the mean change in knee pain was -2.1 points with PRP versus -1.8 with saline (difference -0.4; 95% CI -0.9 to 0.2; P=.17) against a minimum clinically important difference of 1.8, and the change in medial tibial cartilage volume was -1.4% versus -1.2% (difference -0.2%; 95% CI -1.9% to 1.5%; P=.81). Twenty-nine of 31 prespecified secondary outcomes showed no significant between-group difference. The authors concluded the findings do not support use of PRP for knee OA. Bennell KL, Paterson KL, Metcalf BR, et al. — [Effect of Intra-articular Platelet-Rich Plasma vs Placebo Injection on Pain and Medial Tibial Cartilage Volume in Patients With Knee Osteoarthritis: The RESTORE Randomized Clinical Trial](https://pubmed.ncbi.nlm.nih.gov/34812863/). *JAMA*, 2021. DOI: 10.1001/jama.2021.19415. 2. A meta-analysis of 18 Level I randomized trials (811 patients receiving PRP, 797 receiving hyaluronic acid, mean follow-up 11.1 months) found mean improvement in total WOMAC scores was significantly higher with PRP (44.7%) than with hyaluronic acid (12.6%) (P<.01), and 6 of 11 VAS-reporting studies found significantly less pain with PRP at latest follow-up. Belk JW, Kraeutler MJ, Houck DA, et al. — [Platelet-Rich Plasma Versus Hyaluronic Acid for Knee Osteoarthritis: A Systematic Review and Meta-analysis of Randomized Controlled Trials](https://pubmed.ncbi.nlm.nih.gov/32302218/). *American Journal of Sports Medicine*, 2021. DOI: 10.1177/0363546520909397. 3. A meta-analysis of eight studies (648 patients, mean age 59) judged at low risk of bias found PRP significantly better than intra-articular corticosteroid for knee OA symptoms at 3, 6 and 9 months (P<0.01), with the largest effects at 6 months (SMD -0.78; 95% CI -1.34 to -0.23) and 9 months (SMD -1.63; 95% CI -2.14 to -1.12). This is the strongest available case for PRP as a longer-acting alternative to a steroid shot. McLarnon M, Heron N — [Intra-articular platelet-rich plasma injections versus intra-articular corticosteroid injections for symptomatic management of knee osteoarthritis: systematic review and meta-analysis](https://pubmed.ncbi.nlm.nih.gov/34134679/). *BMC Musculoskeletal Disorders*, 2021. DOI: 10.1186/s12891-021-04308-3. 4. A Bayesian network meta-analysis restricted to LARGE randomized trials (at least 100 patients per group; 57 trials, 22,795 participants, 18 intra-articular interventions) found treatment effects were larger in the 35 high-risk-of-bias trials than in the 22 low/unclear-risk trials. Excluding high-risk trials, the effects of 16 of the 18 intra-articular interventions in knee or hip OA were smaller than the minimal clinically important difference and most were consistent with placebo effects; triamcinolone had the highest probability of exceeding the MID at weeks 2-6. Pereira TV, Saadat P, Bobos P, et al. — [Effectiveness and safety of intra-articular interventions for knee and hip osteoarthritis based on large randomized trials: A systematic review and network meta-analysis](https://pubmed.ncbi.nlm.nih.gov/39265924/). *Osteoarthritis and Cartilage*, 2025. DOI: 10.1016/j.joca.2024.08.014. 5. A systematic review of 105 clinical PRP studies in orthopaedics published 2006-2016 found that only 11 (10%) described the preparation protocol clearly enough for another investigator to repeat it, and only 17 (16%) reported any quantitative metric of the final PRP composition. The authors concluded that the current reporting of PRP preparation and composition does not allow the PRP products actually delivered to patients to be compared between studies. Chahla J, Cinque ME, Piuzzi NS, et al. — [A Call for Standardization in Platelet-Rich Plasma Preparation Protocols and Composition Reporting: A Systematic Review of the Clinical Orthopaedic Literature](https://pubmed.ncbi.nlm.nih.gov/29040132/). *Journal of Bone and Joint Surgery (American)*, 2017. DOI: 10.2106/JBJS.16.01374. 6. A systematic review of 132 Level I/II PRP studies across all medical specialties, covering 28 different conditions, found inconsistent reporting of PRP composition in every field of medicine. Musculoskeletal indications - knee osteoarthritis and tendinopathy above all - accounted for the majority of high-level studies. Sixty-one percent of the studies reported PRP as favourable over the control treatment, with no difference in that proportion between musculoskeletal and non-musculoskeletal specialties. Nazaroff J, Oyadomari S, Brown N, et al. — [Reporting in clinical studies on platelet-rich plasma therapy among all medical specialties: A systematic review of Level I and II studies](https://pubmed.ncbi.nlm.nih.gov/33891618/). *PLOS ONE*, 2021. DOI: 10.1371/journal.pone.0250007. ## Bring your questions to the Chandler clinic A QC Kinetix clinician may discuss platelet-rich plasma, or PRP, made by spinning your blood and selecting one layer. That layer has extra platelets, small blood pieces that gather where skin is cut and help repair begin. Regenerative care means the treatment material comes from you. Ask what caused the soreness, what the blood mixture holds, and what the care costs. Find the Chandler office at 1100 S. Dobson Rd., Suite 210; its shared Phoenix-area number is (602) 837-PAIN. Book a free consultation: --- Understand the soreness. Know what to do next. Clear answers about joint soreness, warning signs, home relief, PRP, costs, and a Chandler clinic visit. Plain guidance for sore joints, PRP questions, safety, costs, and Chandler clinic care. This site is operated by the owners of the QC Kinetix Phoenix-area clinics, so its Chandler clinic recommendation comes from the business behind that location. © 2026 Chandler PRP Field Notes. General health education only; a qualified clinician must assess individual symptoms and urgent warning signs.